Hot on the heels of the news that Verizon is doubling LTE speeds with XLTE, the company announced that it will rolling out VoLTE (Voice over LTE) service to its nationwide network at some point later this year.

“Choosing a national rollout on the nation’s largest 4G LTE network, Verizon can deliver a seamless customer experience for high-quality calling and other features,” reads a post from Verizon’s Debi Lewis. “From the beginning, Verizon’s VoLTE service will offer an HD Voice experience, using the AMR-wideband standard.”

Verizon will support a “robust lineup” of smartphones at launch, and more will get a software update to support VoLTE. That’s a good thing, too, because you’ll only be able to make VoLTE calls to other users with capable handsets.

Assuming the person on the other end of the call has VoLTE, you’ll be able to seamlessly switch from voice-only to voice and video, which is quite a compelling feature. Verizon also says that VoLTE will also lay the groundwork for more enhancements such as large file transfers, better group messaging, and location sharing.